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USGS Daily Statistics for Pennsylvania

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.


The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01536000 Lackawanna River at Old Forge, PA


Lackawanna County, Pennsylvania
Hydrologic Unit Code 02050107
Latitude  41°21'33", Longitude  75°44'41" NAD27
Drainage area 332  square miles
Gage datum 594.61 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1959-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 508 429 575 1,140 727 594 394 193 244 376 352 575
2 513 481 580 1,150 671 511 346 214 291 302 332 580
3 500 527 569 1,240 648 434 299 211 202 279 345 529
4 488 507 570 1,280 653 382 279 232 214 274 307 506
5 499 453 722 1,210 671 352 244 208 175 278 291 482
6 473 420 755 1,110 711 433 213 200 189 254 296 475
7 471 438 703 1,070 699 483 193 187 281 230 290 513
8 472 408 682 1,040 629 393 210 188 231 217 341 524
9 466 373 689 935 656 363 204 207 256 261 447 501
10 484 367 787 951 670 341 179 222 223 247 415 495
11 443 442 813 905 675 318 180 238 204 274 423 593
12 443 445 779 834 668 336 192 230 213 292 425 624
13 465 436 781 837 698 367 216 291 240 239 443 634
14 531 429 824 798 720 371 245 307 211 236 419 612
15 444 437 909 847 683 368 222 247 196 257 430 537
16 418 462 782 952 692 346 211 198 237 271 467 515
17 384 466 798 937 700 357 182 180 214 271 505 513
18 395 493 805 834 645 344 186 221 451 254 425 602
19 529 481 774 783 615 310 177 201 274 363 411 519
20 484 493 803 766 641 276 167 162 225 396 434 465
21 406 501 811 738 563 344 170 161 200 446 434 553
22 381 520 879 733 549 404 178 174 201 351 424 508
23 404 549 879 718 528 433 181 274 249 323 438 501
24 497 652 825 718 526 355 200 178 263 328 404 541
25 586 745 858 758 483 306 202 173 336 306 407 609
26 594 698 863 727 429 325 192 143 289 342 419 536
27 641 582 965 760 406 426 190 145 426 382 505 509
28 585 625 974 729 393 543 178 207 437 417 644 480
29 525 608 1,080 662 513 395 166 187 368 408 595 478
30 509   1,070 655 479 361 203 191 334 389 579 470
31 469   1,070   480   225 165   358   504